This document discusses different types of milling operations including plain milling, face milling, angular milling, form milling, straddle milling, gang milling, end milling, and keyway milling. It provides details on each operation such as the cutters used, surfaces produced, and applications. The document is authored by Polayya Chintada who is an Assistant Professor and discusses these milling operations for a course on Metal Cutting and Machine Tools.

1. LENDI INSTITUTE OF ENGINEERING
AND TECHNOLOGY
METAL CUTTING AND MACHINE TOOLS
COURSE CODE: C302
REGULATION: R16
3rd BTECH 1st SEM
PREPARED BY :
POLAYYA CHINTADA M.TECH,M.B.A,(PhD)
ASSISTANT PROFESSOR
TOPIC:
MILLING OPERATIONS

2. MILLINGoperations :
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Milling operations are
PLAIN MILLING
FACE MILLING
 ANGULAR MILLING
FORM MILLING
STRADDLE MILLING
GANG MILLING
END MILLING
KEYWAY MILLING

3. MILLINGoperations :
3
PLAIN MILLING:
It is the operation of production of a flat
surface parallel to the axis of rotation of the
cutter.
It is also called as slab milling.
Plain milling cutters and slab milling cutters
are used to perform this operation
It can be carried out by both horizontal and
vertical machines

4. MILLINGoperations :
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Face MILLING:
The face milling is the operation performed
by the face milling cutter rotated about an axis
at right angles to the work surface.
face milling cutter are also used at times to
perform this operation.
The depth of cut is provided to the table.

5. MILLINGoperations :
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angular MILLING:
Production of an angular surface on a work piece other than at
right angles to the axis of the milling machine spindle is known as
angular milling
 Example of angular milling is the production of the “V‟ blocks
Angular cutters are two types
Single angular cutter
Double angular cutter
A single angle milling cutter is used for angular surfaces, such
as chamfers, serration’s, and grooves. Milling dovetails

6. MILLINGoperations :
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straddle MILLING:
 It is the operation of production of two vertical surfaces on
both sides of the work by two side milling cutters mounted on
the same arbor.
By using suitable spacing collars, the distance between the
two cutters is adjusted correctly.
 The straddle milling is commonly used to produce square or
hexagonal surfaces.

7. MILLINGoperations :
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form MILLING:
The form milling is the operation of
production of irregular contours by using form
cutters.
Machining convex and concave surfaces and
gear cutting are some examples of form milling.
The teeth of the form milling cutter have a
shape which corresponds to the profile of the
surface to be produced.

8. MILLINGoperations :
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gang MILLING:
Two or more milling cutters mounted on the same arbor.
 Displacing the cutters half a pitch in relation to each other assists
in avoiding vibration.
 High productivity, high removal rate.
 Medium/big series.
It is the operation of machining several surfaces of work
simultaneously by feeding the table against a number of cutters
(either of same type or of different type) mounted on the arbor of the
machine.
This method saves much of machining time and mostly used in
production work.
All cutters may perform the same type of operation or each cutter
may perform a different type of operation

9. MILLINGoperations :
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END MILLING:
It is the operation of producing a flat
surface which may be vertical, horizontal
or at an angle to the table surface.
The end milling is performed by a cutter
known as an end mill.
End milling is mostly performed in a
vertical milling machine.

10. MILLINGoperations :
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KEYWAY MILLING:
The operation of production of keyways,
grooves and slots of different shapes and
sizes can be performed in a milling
machine by using a plain milling cutter, a
metal slitting saw, an end mill or by a side
milling cutter

11. Yours:
POLAYYA CHINTADA M.TECH,M.B.A,(PhD)
ASSISTANT PROFESSOR